400 is a significant number because it is a square number as 20*20 = 400
Yes, 202 = 400
There are 256,000 acres in 400 square miles. This is calculated by multiplying the number of square miles by 640 (which is the number of acres in a square mile).
A square number is an integer which is the square of some smaller integer. For example, 144 is square because 144 = 12*12 = 12^2 400 is a square number because 400 = 20^2. Anything bigger than 20, when multiplied by itself, will make a square greater than 400. How about 21?
20
Yes. 400 is the product of 20 x 20.
One acre has 43,560 square feet. Divide the number of square feet by that and you get the number of acres. This gives you an answer of 3.67 acres.
20 squared is 400.
400 square feet. This is an easy calculation - just multiply the length in feet by the width in feet. The answer is the number of square feet.
Answer: Umm... i dont know... Well 500 is soo is 400??? OMg -_-""""" From Unknown
In order to determine the number of meters in 400 square meters, we need to take the square root of 400. The square root of 400 is 20. Therefore, there are 20 meters in each dimension of a 400 square meter area.
Well, a square number is the answer to a number multiplied by itself. So, what you'd have to do is multiply 20*20, and the answer is 400.